The ship's speed indication on the ARPA...

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Question 1 of 20quyfEK16Bnf0rH4heFKu

The ship's speed indication on the ARPA display can be set manually, but does not change with changes in the vessel's speed. What other indication would point to a related equipment failure?

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Question 1 of 20

quyfEK16Bnf0rH4heFKu

The ship's speed indication on the ARPA display can be set manually, but does not change with changes in the vessel's speed. What other indication would point to a related equipment failure?

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🔍 Key Concepts

• ARPA (Automatic Radar Plotting Aid) inputs: log/speed sensor, gyrocompass, sometimes GPS • Difference between a speed log failure and a gyrocompass failure and how each would affect the ARPA display • What ARPA messages like TARGET LOST or display modes (e.g., NORTH UP) actually mean

💭 Think About

• Ask yourself: If the speed readout can be set manually but is not updating with real speed changes, which sensor input to ARPA is likely missing or failed? • Consider what message the ARPA would show if it stopped receiving data from the ships speed log, versus if the gyrocompass failed. • Think about whether display mode (like north-up) or lost targets would directly indicate a sensor for ships own speed is not working.

✅ Before You Answer

• Identify which ARPA alarm or status message is tied specifically to loss of speed log data. • Distinguish between indications related to heading input (gyro) and those related to speed input (log). • Confirm that the option you choose directly points to a failure of the equipment that measures the ships own speed through the water.

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Question 1 of 20quyfEK16Bnf0rH4heFKu

The ship's speed indication on the ARPA display can be set manually, but does not change with changes in the vessel's speed. What other indication would point to a related equipment failure?

Back

Question 1 of 20

quyfEK16Bnf0rH4heFKu

The ship's speed indication on the ARPA display can be set manually, but does not change with changes in the vessel's speed. What other indication would point to a related equipment failure?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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